201421385

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{293}}^1\times {\mathrm{431}}^1$

素因数の和:769

約数の個数: 32

約数和(自身を含む): 274337280

約数和(自身を除く): 72915895

約数列:

[1, 5, 11, 29, 55, 145, 293, 319, 431, 1465, 1595, 2155, 3223, 4741, 8497, 12499, 16115, 23705, 42485, 62495, 93467, 126283, 137489, 467335, 631415, 687445, 1389113, 3662207, 6945565, 18311035, 40284277, 201421385]

約数ペア:

[(1, 201421385), (5, 40284277), (11, 18311035), (29, 6945565), (55, 3662207), (145, 1389113), (293, 687445), (319, 631415), (431, 467335), (1465, 137489), (1595, 126283), (2155, 93467), (3223, 62495), (4741, 42485), (8497, 23705), (12499, 16115)]